How do you bring up swinging with your partner?
Pick a calm, private setting and frame it as a fantasy you want to explore together rather than a complaint about the relationship. Share what specifically appeals to you (variety, voyeurism, watching them with someone else, etc.) and ask what they think without pressing for a yes or no. Expect the conversation to take weeks or months, not minutes. Many couples find that the first conversation goes nowhere but a follow-up a few weeks later — once the surprise has worn off — is much more productive.